:root {
    --br-bg: #f3f4f8;
    --br-surface: #ffffff;
    --br-ink: #111318;
    --br-muted: #5d6472;
    --br-line: #e4e6ee;
    --br-accent: #4f46e5;
    --br-accent-hover: #4338ca;
    --br-accent-soft: #eef2ff;
    --br-success: #059669;
    --br-success-soft: #ecfdf5;
    --br-warning: #d97706;
    --br-warning-soft: #fffbeb;
    --br-danger: #dc2626;
    --br-danger-soft: #fef2f2;
    --br-radius: 16px;
    --br-shadow: 0 1px 2px rgba(17, 19, 24, 0.04), 0 8px 24px rgba(17, 19, 24, 0.04);
    --bs-primary: #4f46e5;
    --bs-primary-rgb: 79, 70, 229;
    --bs-link-color: #4f46e5;
    --bs-link-hover-color: #4338ca;
    --bs-border-radius: 0.7rem;
    --bs-body-font-family: "Plus Jakarta Sans", system-ui, sans-serif;
    --bs-body-color: #111318;
    --bs-secondary-color: #5d6472;
    --bs-border-color: #e4e6ee;
}

html { font-size: 15px; }

body {
    background: var(--br-bg);
    color: var(--br-ink);
    font-family: "Plus Jakarta Sans", system-ui, sans-serif;
    letter-spacing: -0.011em;
    min-height: 100vh;
}

h1, h2, h3, .h1, .h2, .h3, .navbar-brand {
    letter-spacing: -0.03em;
    font-weight: 700;
}

a { text-decoration: none; }
a:hover { text-decoration: none; }

.app-shell { min-height: 100vh; }

.app-nav {
    background: rgba(255, 255, 255, 0.86);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--br-line);
    padding: 0.7rem 0;
}

.app-nav .navbar-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1.05rem;
    color: var(--br-ink);
}

.app-nav .navbar-brand:hover { color: var(--br-ink); }

.brand-mark {
    width: 1.7rem;
    height: 1.7rem;
    border-radius: 8px;
    background: linear-gradient(145deg, #6366f1 0%, #4f46e5 55%, #7c3aed 100%);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0;
}

.app-nav .nav-link {
    color: var(--br-muted);
    font-weight: 550;
    font-size: 0.92rem;
    padding: 0.4rem 0.7rem;
    border-radius: 999px;
    text-transform: none;
}

.app-nav .nav-link:hover,
.app-nav .nav-link.active {
    color: var(--br-ink);
    background: var(--br-accent-soft);
}

.app-nav .nav-user {
    color: var(--br-muted);
    font-size: 0.85rem;
}

.app-nav .navbar-toggler {
    border-color: var(--br-line);
}

.app-nav .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(17, 19, 24, 0.75)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.app-main {
    padding: 1.75rem 0 3rem;
}

.page-title {
    font-size: 1.65rem;
    margin-bottom: 0.25rem;
}

.page-subtitle {
    color: var(--br-muted);
    margin-bottom: 1.5rem;
}

.card {
    border: 1px solid var(--br-line);
    border-radius: var(--br-radius);
    box-shadow: var(--br-shadow);
    background: var(--br-surface);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--br-line);
    padding: 1rem 1.15rem;
    font-weight: 650;
}

.card-body { padding: 1.15rem; }

.table {
    --bs-table-bg: transparent;
    --bs-table-hover-bg: #f7f8fb;
    margin-bottom: 0;
}

.table thead th {
    background: #f8f9fc;
    color: var(--br-muted);
    font-size: 0.75rem;
    font-weight: 650;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border-bottom: 1px solid var(--br-line);
    padding: 0.8rem 1rem;
}

.table td {
    padding: 0.9rem 1rem;
    vertical-align: middle;
    border-color: var(--br-line);
}

.badge {
    font-weight: 600;
    letter-spacing: 0.01em;
    border-radius: 999px;
    padding: 0.35em 0.7em;
}

.badge.bg-success { background: var(--br-success-soft) !important; color: var(--br-success) !important; }
.badge.bg-warning { background: var(--br-warning-soft) !important; color: var(--br-warning) !important; }
.badge.bg-danger { background: var(--br-danger-soft) !important; color: var(--br-danger) !important; }
.badge.bg-secondary { background: #eef0f5 !important; color: #4b5563 !important; }
.badge.bg-primary { background: var(--br-accent-soft) !important; color: var(--br-accent) !important; }

.btn {
    font-weight: 600;
    border-radius: 10px;
}

.btn-primary {
    background: var(--br-accent);
    border-color: var(--br-accent);
}

.btn-primary:hover,
.btn-primary:focus {
    background: var(--br-accent-hover);
    border-color: var(--br-accent-hover);
}

.btn-outline-primary {
    color: var(--br-accent);
    border-color: #c7d2fe;
}

.btn-outline-primary:hover {
    background: var(--br-accent-soft);
    color: var(--br-accent-hover);
    border-color: #a5b4fc;
}

.btn-sm { border-radius: 8px; }

.form-control,
.form-select {
    border-color: var(--br-line);
    border-radius: 10px;
    padding: 0.6rem 0.8rem;
}

.form-control:focus,
.form-select:focus {
    border-color: #a5b4fc;
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.12);
}

.form-label { font-weight: 600; color: #374151; }

.nav-tabs {
    border-bottom-color: var(--br-line);
    gap: 0.25rem;
}

.nav-tabs .nav-link {
    border: none;
    color: var(--br-muted);
    font-weight: 600;
    border-radius: 10px 10px 0 0;
}

.nav-tabs .nav-link.active {
    color: var(--br-accent);
    background: transparent;
    box-shadow: inset 0 -2px 0 var(--br-accent);
}

.alert {
    border: 1px solid transparent;
    border-radius: 12px;
}

.stat-card {
    border: 1px solid var(--br-line);
    border-radius: var(--br-radius);
    background: var(--br-surface);
    box-shadow: var(--br-shadow);
    padding: 1.2rem 1.25rem;
    height: 100%;
}

.stat-card .stat-label {
    color: var(--br-muted);
    font-size: 0.82rem;
    font-weight: 650;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.45rem;
}

.stat-card .stat-value {
    font-size: 1.55rem;
    font-weight: 750;
    letter-spacing: -0.03em;
}

.stat-card .stat-meta { color: var(--br-muted); margin: 0.35rem 0 0.85rem; }

.stat-card a { font-weight: 650; color: var(--br-accent); }

.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(1200px 500px at 10% -10%, rgba(99, 102, 241, 0.18), transparent 50%),
        radial-gradient(900px 400px at 100% 0%, rgba(124, 58, 237, 0.12), transparent 45%),
        var(--br-bg);
}

.auth-page .app-nav { display: none; }

.auth-card {
    width: min(420px, 100%);
}

.auth-card .card-body { padding: 2rem; }

.offcanvas { border-left: 1px solid var(--br-line); }

@media (max-width: 991px) {
    .app-nav .navbar-collapse {
        padding-top: 0.75rem;
    }
    .app-nav .nav-link { display: block; }
}